./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9551eac17e9ca0a42612f73eb01545dde991582 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 08:18:15,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 08:18:15,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 08:18:15,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 08:18:15,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 08:18:15,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 08:18:15,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 08:18:15,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 08:18:15,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 08:18:15,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 08:18:15,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 08:18:15,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 08:18:15,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 08:18:15,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 08:18:15,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 08:18:15,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 08:18:15,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 08:18:15,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 08:18:15,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 08:18:15,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 08:18:15,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 08:18:15,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 08:18:15,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 08:18:15,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 08:18:15,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 08:18:15,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 08:18:15,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 08:18:15,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 08:18:15,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 08:18:15,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 08:18:15,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 08:18:15,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 08:18:15,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 08:18:15,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 08:18:15,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 08:18:15,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 08:18:15,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 08:18:15,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 08:18:15,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 08:18:15,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 08:18:15,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 08:18:15,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 08:18:15,993 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 08:18:15,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 08:18:15,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 08:18:15,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 08:18:15,995 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 08:18:15,995 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 08:18:15,995 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 08:18:15,995 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 08:18:15,996 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 08:18:15,996 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 08:18:15,996 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 08:18:15,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 08:18:15,996 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 08:18:15,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 08:18:15,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 08:18:15,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 08:18:15,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 08:18:15,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 08:18:15,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 08:18:15,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 08:18:15,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 08:18:15,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 08:18:15,998 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 08:18:15,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 08:18:15,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 08:18:15,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 08:18:15,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 08:18:15,999 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 08:18:15,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 08:18:16,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 08:18:16,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 08:18:16,000 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 08:18:16,001 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 08:18:16,001 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9551eac17e9ca0a42612f73eb01545dde991582 [2020-10-20 08:18:16,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 08:18:16,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 08:18:16,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 08:18:16,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 08:18:16,230 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 08:18:16,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2020-10-20 08:18:16,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/807e10f9b/f9160c44352249ed9a8b7a5eee221d89/FLAG15a0720eb [2020-10-20 08:18:16,925 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 08:18:16,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2020-10-20 08:18:16,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/807e10f9b/f9160c44352249ed9a8b7a5eee221d89/FLAG15a0720eb [2020-10-20 08:18:17,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/807e10f9b/f9160c44352249ed9a8b7a5eee221d89 [2020-10-20 08:18:17,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 08:18:17,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 08:18:17,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 08:18:17,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 08:18:17,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 08:18:17,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61619f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17, skipping insertion in model container [2020-10-20 08:18:17,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 08:18:17,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 08:18:17,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:18:17,648 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 08:18:17,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:18:17,811 INFO L208 MainTranslator]: Completed translation [2020-10-20 08:18:17,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17 WrapperNode [2020-10-20 08:18:17,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 08:18:17,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 08:18:17,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 08:18:17,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 08:18:17,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 08:18:17,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 08:18:17,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 08:18:17,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 08:18:17,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... [2020-10-20 08:18:17,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 08:18:17,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 08:18:17,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 08:18:17,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 08:18:17,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 08:18:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 08:18:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 08:18:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 08:18:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 08:18:17,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 08:18:18,277 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 08:18:18,278 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 08:18:18,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:18:18 BoogieIcfgContainer [2020-10-20 08:18:18,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 08:18:18,282 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 08:18:18,283 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 08:18:18,286 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 08:18:18,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:18:18,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 08:18:17" (1/3) ... [2020-10-20 08:18:18,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@486f180b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:18:18, skipping insertion in model container [2020-10-20 08:18:18,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:18:18,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:17" (2/3) ... [2020-10-20 08:18:18,289 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@486f180b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:18:18, skipping insertion in model container [2020-10-20 08:18:18,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:18:18,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:18:18" (3/3) ... [2020-10-20 08:18:18,291 INFO L373 chiAutomizerObserver]: Analyzing ICFG mult_array-alloca-1.i [2020-10-20 08:18:18,361 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 08:18:18,361 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 08:18:18,361 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 08:18:18,361 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 08:18:18,362 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 08:18:18,362 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 08:18:18,362 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 08:18:18,362 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 08:18:18,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 08:18:18,397 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:18:18,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:18,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:18,403 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:18,403 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:18,403 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 08:18:18,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 08:18:18,405 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:18:18,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:18,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:18,406 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:18,406 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:18,412 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 3#L515true assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 5#L515-2true main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 16#L517true assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 4#L517-2true call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 10#L520true assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 14#L521-3true [2020-10-20 08:18:18,412 INFO L796 eck$LassoCheckResult]: Loop: 14#L521-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 12#L521-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 14#L521-3true [2020-10-20 08:18:18,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:18,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815374, now seen corresponding path program 1 times [2020-10-20 08:18:18,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:18,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459394595] [2020-10-20 08:18:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:18,512 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-20 08:18:18,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523920227] [2020-10-20 08:18:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:18:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:18,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:18,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:18,766 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:18,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:18,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-10-20 08:18:18,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:18,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708714201] [2020-10-20 08:18:18,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:18,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:18,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:18,819 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:18,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:18,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787760, now seen corresponding path program 1 times [2020-10-20 08:18:18,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:18,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644121159] [2020-10-20 08:18:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:18,828 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-20 08:18:18,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1751150259] [2020-10-20 08:18:18,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:18:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:19,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:19,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:19,339 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:29,193 WARN L193 SmtUtils]: Spent 9.78 s on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-10-20 08:18:31,714 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 56 [2020-10-20 08:18:31,731 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:18:31,731 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:18:31,732 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:18:31,732 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:18:31,732 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:18:31,732 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:31,732 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:18:31,733 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:18:31,733 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-1.i_Iteration1_Lasso [2020-10-20 08:18:31,733 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:18:31,733 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:18:31,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:31,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:52,377 WARN L193 SmtUtils]: Spent 20.24 s on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-10-20 08:18:52,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:52,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:52,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:58,807 WARN L193 SmtUtils]: Spent 6.32 s on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-10-20 08:19:10,676 WARN L193 SmtUtils]: Spent 11.71 s on a formula simplification that was a NOOP. DAG size: 37 [2020-10-20 08:19:10,779 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:19:10,787 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:10,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:10,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:10,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:10,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:10,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:10,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:10,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:10,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:10,825 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:10,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:10,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:10,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:10,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:10,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:10,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:10,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:10,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:10,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:10,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:10,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:10,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:10,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:10,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:10,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:10,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:10,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:10,927 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:10,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:10,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:10,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:10,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:10,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:10,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:10,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:10,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:10,960 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:10,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:10,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:10,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:10,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:10,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:10,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:10,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:11,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:11,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:11,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:11,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:11,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:11,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:11,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:11,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:11,044 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:11,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:11,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:11,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:11,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:11,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:11,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:11,096 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:11,104 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:11,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:11,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:11,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:11,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:11,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:11,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:11,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:11,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:11,147 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:11,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:11,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:11,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:11,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:11,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:11,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:11,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:11,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:11,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:11,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:11,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:11,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:11,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:11,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:11,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:11,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:11,215 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:11,239 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:11,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:11,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:11,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:11,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:11,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:11,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:11,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:11,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:11,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:11,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:11,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:11,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:11,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:11,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:11,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:11,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:19:11,371 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-10-20 08:19:11,372 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:11,382 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:19:11,388 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:19:11,388 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:19:11,389 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0.offset, ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1) = -1*ULTIMATE.start_main_~arr~0.offset - 4*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1 Supporting invariants [] [2020-10-20 08:19:11,454 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-20 08:19:11,464 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:19:11,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:11,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:19:11,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:11,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:19:11,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:11,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:11,565 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 08:19:11,566 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-10-20 08:19:11,651 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 35 states and 46 transitions. Complement of second has 7 states. [2020-10-20 08:19:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 08:19:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:19:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-10-20 08:19:11,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-20 08:19:11,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:11,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-20 08:19:11,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:11,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-20 08:19:11,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:11,660 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2020-10-20 08:19:11,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:11,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 13 states and 17 transitions. [2020-10-20 08:19:11,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-20 08:19:11,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-20 08:19:11,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-10-20 08:19:11,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:19:11,687 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-20 08:19:11,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-10-20 08:19:11,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-20 08:19:11,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 08:19:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-10-20 08:19:11,731 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-20 08:19:11,731 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-20 08:19:11,731 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 08:19:11,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-10-20 08:19:11,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:11,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:11,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:11,752 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:19:11,752 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:19:11,753 INFO L794 eck$LassoCheckResult]: Stem: 133#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 130#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 134#L515-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 140#L517 assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 135#L517-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 136#L520 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 137#L521-3 assume !(main_~i~0 < main_~length~0); 141#L521-4 main_~j~0 := 0; 131#L524-3 [2020-10-20 08:19:11,753 INFO L796 eck$LassoCheckResult]: Loop: 131#L524-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 132#L524-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 131#L524-3 [2020-10-20 08:19:11,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:11,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787702, now seen corresponding path program 1 times [2020-10-20 08:19:11,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:11,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379728009] [2020-10-20 08:19:11,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:11,765 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-20 08:19:11,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697875291] [2020-10-20 08:19:11,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:19:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:11,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 08:19:11,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:11,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379728009] [2020-10-20 08:19:11,868 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-20 08:19:11,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697875291] [2020-10-20 08:19:11,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:19:11,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:19:11,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332206165] [2020-10-20 08:19:11,873 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:19:11,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:11,873 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 1 times [2020-10-20 08:19:11,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:11,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182539002] [2020-10-20 08:19:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:11,884 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-20 08:19:11,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862868137] [2020-10-20 08:19:11,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:19:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:11,931 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:11,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:11,964 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:12,136 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-20 08:19:13,902 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 127 DAG size of output: 90 [2020-10-20 08:19:13,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:19:13,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 08:19:13,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 08:19:13,910 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-20 08:19:14,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:19:14,236 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-10-20 08:19:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 08:19:14,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2020-10-20 08:19:14,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:14,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 17 transitions. [2020-10-20 08:19:14,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-20 08:19:14,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-20 08:19:14,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2020-10-20 08:19:14,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:19:14,240 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-10-20 08:19:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2020-10-20 08:19:14,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-10-20 08:19:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 08:19:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-20 08:19:14,242 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-20 08:19:14,242 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-20 08:19:14,242 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 08:19:14,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2020-10-20 08:19:14,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:14,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:14,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:14,244 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:19:14,244 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:19:14,244 INFO L794 eck$LassoCheckResult]: Stem: 191#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 187#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 188#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 192#L515-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 198#L517 assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 193#L517-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 194#L520 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 195#L521-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 196#L521-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 197#L521-3 assume !(main_~i~0 < main_~length~0); 199#L521-4 main_~j~0 := 0; 189#L524-3 [2020-10-20 08:19:14,244 INFO L796 eck$LassoCheckResult]: Loop: 189#L524-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 190#L524-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 189#L524-3 [2020-10-20 08:19:14,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:14,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1507295208, now seen corresponding path program 1 times [2020-10-20 08:19:14,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:14,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383072785] [2020-10-20 08:19:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:14,251 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-20 08:19:14,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584901896] [2020-10-20 08:19:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:19:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:14,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:14,306 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:14,312 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:14,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:14,313 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 2 times [2020-10-20 08:19:14,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:14,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464767172] [2020-10-20 08:19:14,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:14,317 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-20 08:19:14,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774264731] [2020-10-20 08:19:14,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:19:14,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 08:19:14,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-20 08:19:14,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:14,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:14,370 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:14,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:14,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1106714758, now seen corresponding path program 1 times [2020-10-20 08:19:14,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:14,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096571946] [2020-10-20 08:19:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:14,377 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-20 08:19:14,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245303018] [2020-10-20 08:19:14,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:19:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:14,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:14,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:14,450 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:14,672 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-20 08:19:16,452 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-20 08:19:17,515 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 104 DAG size of output: 80 [2020-10-20 08:19:17,882 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-20 08:19:17,884 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:19:17,884 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:19:17,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:19:17,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:19:17,885 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:19:17,885 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:17,885 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:19:17,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:19:17,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-1.i_Iteration3_Lasso [2020-10-20 08:19:17,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:19:17,886 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:19:17,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:17,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:17,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:17,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:17,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:17,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:17,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:17,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:17,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:17,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:19,486 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-20 08:19:19,982 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2020-10-20 08:19:19,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:19,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:19,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:28,191 WARN L193 SmtUtils]: Spent 8.15 s on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-10-20 08:19:28,381 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-10-20 08:19:28,996 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-20 08:19:29,133 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-20 08:19:29,272 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:19:29,273 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:29,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:29,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:29,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:29,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:29,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:29,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:29,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:29,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:29,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:29,314 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:29,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:29,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:29,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:29,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:29,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:29,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:29,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:29,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:29,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:29,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:29,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:29,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:29,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:29,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:29,400 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:29,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:29,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,427 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:29,427 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:29,431 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:29,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:29,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:29,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:29,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:29,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:29,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:29,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:29,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:29,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:29,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:29,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:29,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:29,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:29,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:29,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:29,564 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:19:29,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:29,601 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-10-20 08:19:29,601 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 08:19:29,662 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:19:29,782 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-10-20 08:19:29,782 INFO L444 ModelExtractionUtils]: 40 out of 61 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:29,785 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:19:29,793 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-10-20 08:19:29,794 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:19:29,794 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~arr2~0.base)_1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~arr2~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~arr2~0.base)_1 - 4*ULTIMATE.start_main_~j~0 - 1*ULTIMATE.start_main_~arr2~0.offset Supporting invariants [] [2020-10-20 08:19:30,028 INFO L297 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2020-10-20 08:19:30,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:19:30,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:30,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:19:30,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:30,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:19:30,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:30,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:30,145 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 08:19:30,145 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-20 08:19:30,163 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 19 transitions. Complement of second has 4 states. [2020-10-20 08:19:30,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 08:19:30,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:19:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2020-10-20 08:19:30,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-20 08:19:30,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:30,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 13 letters. Loop has 2 letters. [2020-10-20 08:19:30,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:30,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2020-10-20 08:19:30,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:30,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-10-20 08:19:30,170 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:19:30,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-20 08:19:30,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:19:30,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:19:30,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:19:30,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:19:30,171 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:19:30,171 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:19:30,171 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:19:30,171 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 08:19:30,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 08:19:30,171 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:19:30,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 08:19:30,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 08:19:30 BoogieIcfgContainer [2020-10-20 08:19:30,178 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 08:19:30,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 08:19:30,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 08:19:30,179 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 08:19:30,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:18:18" (3/4) ... [2020-10-20 08:19:30,183 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 08:19:30,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 08:19:30,184 INFO L168 Benchmark]: Toolchain (without parser) took 72944.65 ms. Allocated memory was 39.8 MB in the beginning and 57.1 MB in the end (delta: 17.3 MB). Free memory was 15.2 MB in the beginning and 32.2 MB in the end (delta: -17.0 MB). Peak memory consumption was 258.3 kB. Max. memory is 14.3 GB. [2020-10-20 08:19:30,185 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 30.4 MB. Free memory was 16.0 MB in the beginning and 15.9 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 08:19:30,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.51 ms. Allocated memory was 39.8 MB in the beginning and 41.9 MB in the end (delta: 2.1 MB). Free memory was 14.4 MB in the beginning and 16.3 MB in the end (delta: -1.9 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:30,187 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.85 ms. Allocated memory is still 41.9 MB. Free memory was 16.3 MB in the beginning and 14.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:30,187 INFO L168 Benchmark]: Boogie Preprocessor took 30.06 ms. Allocated memory is still 41.9 MB. Free memory was 14.1 MB in the beginning and 12.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:30,188 INFO L168 Benchmark]: RCFGBuilder took 389.54 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 12.6 MB in the beginning and 12.4 MB in the end (delta: 232.6 kB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:30,189 INFO L168 Benchmark]: BuchiAutomizer took 71895.99 ms. Allocated memory was 42.5 MB in the beginning and 57.1 MB in the end (delta: 14.7 MB). Free memory was 12.4 MB in the beginning and 32.8 MB in the end (delta: -20.4 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 08:19:30,189 INFO L168 Benchmark]: Witness Printer took 4.17 ms. Allocated memory is still 57.1 MB. Free memory was 32.8 MB in the beginning and 32.2 MB in the end (delta: 586.9 kB). Peak memory consumption was 586.9 kB. Max. memory is 14.3 GB. [2020-10-20 08:19:30,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 30.4 MB. Free memory was 16.0 MB in the beginning and 15.9 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 569.51 ms. Allocated memory was 39.8 MB in the beginning and 41.9 MB in the end (delta: 2.1 MB). Free memory was 14.4 MB in the beginning and 16.3 MB in the end (delta: -1.9 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 44.85 ms. Allocated memory is still 41.9 MB. Free memory was 16.3 MB in the beginning and 14.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 30.06 ms. Allocated memory is still 41.9 MB. Free memory was 14.1 MB in the beginning and 12.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 389.54 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 12.6 MB in the beginning and 12.4 MB in the end (delta: 232.6 kB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 71895.99 ms. Allocated memory was 42.5 MB in the beginning and 57.1 MB in the end (delta: 14.7 MB). Free memory was 12.4 MB in the beginning and 32.8 MB in the end (delta: -20.4 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 4.17 ms. Allocated memory is still 57.1 MB. Free memory was 32.8 MB in the beginning and 32.2 MB in the end (delta: 586.9 kB). Peak memory consumption was 586.9 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * arr + -4 * i + unknown-#length-unknown[arr] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[arr2] + -4 * j + -1 * arr2 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 71.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 70.9s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 39 SDtfs, 41 SDslu, 17 SDs, 0 SdLazy, 30 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital301 mio100 ax108 hnf98 lsp141 ukn49 mio100 lsp64 div179 bol100 ite100 ukn100 eq141 hnf95 smp70 dnf113 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 233ms VariablesStem: 11 VariablesLoop: 10 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...